Laptop gets LOWER FPS when plugged in

[acurbis1]

A couple of months ago my old laptop died so i replaced it with an Acer Aspire V5-552P-X617. It has an AMD A10 5757M CPU, AMD HD8650G GPU, and 6 GB of RAM. Ever since I got it I've noticed while I'm playing league of Legends I would get lower FPS while plugged in, even at the lowest settings. Unplugged I would get 60-120 FPS, depending on how much was going on, but while plugged in it would start at 60 FPS, drop to 30 FPS and hover around 20-30 for the rest of the game. At first I thought this was a League problem (even though I had a feeling it wasn't), but when Steam added an FPS counter I realized ALL (or almost all) games I played had the same problem. It can't be a power settings problem because the default power option is balanced when on battery and high performance when plugged in. I even changed both to high performance and made sure every option was the same. So it can't be a Windows power setting problem unless I somehow missed something. Does anyone know what the problem is or how it can be fixed? Also I DO have the latest AMD drivers.

 

[Tanner Fredrickson]

Might be temperatures. When charging, the battery heats up, which will heat the surrounding parts. AMD laptops already run hot. It sounds a lot like your laptop throttles itself down to avoid heat damage when plugged in.